Y=mx+b
mx=slope
b=the y intercept
y= value of y in this equation
Answer:
Yes, I believe the answer is C because that is the only one that sounds reasonable.
If it were any of the other answers than it would either be intersecting or on the exact line and it is supposed to be perpendicular mean never touching.
Okay, well we're gonna find the LCM (least common multiple)
3: 3, 6, 9, 12, 15, 18, 21
7: 7, 14, 21
So...21 days
48 divided by 6 = 8. You take 5 / and get 40 homes